Felix hatched all alone, and he gets frantic when I am gone, wants me to hold him all the time. So he would have some company, I found him a slightly younger female (I think) - she is three weeks old and sooo sweet -- but all he does is bite her! I am thinking of returning her because she must be very unhappy. I have had to separate them to protect her. What is wrong with him? How can I make him behave? Should I resign myself to his being a lone --and lonely--duck forever!?